PHOTOS: Medford Pharmacy Slayings

Ferguson was working on his day off as a favor to his boss when police say suspect David Laffer, an unemployed veteran, came in with a gun to steal prescription medicine. Four people were shot during the robbery, including Taccetta, who was shopping at the time.

At Ferguson's funeral in Forest Hills, mourners remembered a kind man who was about to celebrate his 10th wedding anniversary.

On Long Island, mourners packed Taccetta's funeral. The mother of two was preparing to marry her longtime boyfriend when she was gunned down. She was buried in her wedding dress.

On Friday, the youngest and oldest of the four victims were laid to rest. Bryon Sheffield, 71, of Medford, was buried in Patchogue.

In Coram, 17-year-old Jennifer Mejia was buried in the dress she never got to wear to prom. She was killed days before the dance.

Mejia was a clerk at the drug store.

Towards the end of Mejia's funeral Mass, the priest asked her Bellport classmates to come forward and say goodbye at her coffin, Newsdayreports. About 75 students, wearing caps and gowns, came forward.

"She had a golden heart. She was a great girl," a classmate told Newsday.

Another student, identified as Peter Chokly, 18, defined the day for all, saying, "It's basically her funeral and graduation at the same time."

Mejia had plans to be a doctor. She worked at the pharmacy to make some extra money for college in the fall.

Laffer, 33, has been charged with first-degree murder in the cold-blooded shooting deaths. Police arrested him at his home Wednesday. Laffer, whom police have described as showing no remorse for his alleged crimes, pleaded not guilty to those charges in court on Thursday.

Laffer's wife, Melinda, was charged with robbery for her involvement in the drug store heist. She was also charged with obstructing governmental administration.